check web redirect url status code checker

Check server response of

Server response
NS records
Whois domain
Response headers
Request headers
Raw HTML code
404 Not Found - s2sys.com
HTTP Status: 404
User-Agent: Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; [email protected])
Connection: keep-alive
Content-Length: 566
Retry-After: 0
Server: Pantheon
Cache-Control: no-cache, must-revalidate
Content-Type: text/html; charset=utf-8
X-pantheon-serious-reason: The page could not be loaded properly.
Date: Mon, 12 May 2025 20:36:09 GMT
X-Served-By: cache-hel1410026-HEL
X-Cache: MISS
X-Cache-Hits: 0
X-Timer: S1747082169.933243,VS0,VE136
Vary: Cookie
Age: 0
Accept-Ranges: bytes
Via: 1.1 varnish

HTTP Code 404 Not Found

404 Not Found means that the requested page or resource was not found on the server.

When is Code 404 used?

  • When a page is deleted
  • When the URL is incorrect
  • When there are navigation issues on the website

What does Code 404 mean for the user?

The user sees an error message, and search engines may remove the page from their index.

GET / HTTP/1.1
Host: s2sys.com
Accept: */*
User-Agent: Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; [email protected])

<!DOCTYPE HTML>
      <html>
        <head>
          <title>404 - Unknown site</title>
        </head>
        <body style="font-family:Arial, Helvetica, sans-serif; text-align: center">
          <div style='padding-block: 180px'>
            <h1>
              <div style='font-size: 180px; font-weight: 700'>404</div>
              <div style='font-size: 24px; font-weight: 700'>Unknown site</div>
            </h1>
            <p style="font-size: 16px; font-weight: 400">The page could not be loaded properly.</p>
          </div>
        </body>
      </html>

Whois info of domain

Domain Name: S2SYS.COM
Registry Domain ID: 89274311_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.corporatedomains.com
Registrar URL: http://cscdbs.com
Updated Date: 2025-05-12T16:18:44Z
Creation Date: 2002-08-12T20:41:06Z
Registry Expiry Date: 2025-08-12T20:41:06Z
Registrar: CSC Corporate Domains, Inc.
Registrar IANA ID: 299
Registrar Abuse Contact Email: [email protected]
Registrar Abuse Contact Phone: 8887802723
Domain Status: clientTransferProhibited https://icann.org/epp#clientTransferProhibited
Name Server: MAX.NS.CLOUDFLARE.COM
Name Server: MEILANI.NS.CLOUDFLARE.COM
DNSSEC: unsigned
URL of the ICANN Whois Inaccuracy Complaint Form: https://www.icann.org/wicf/
>>> Last update of whois database: 2025-05-12T20:36:01Z <<<
For more information on Whois status codes, please visit https://icann.org/epp
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